We divide 2157054 by 866
We want to figure out the number of times 2157054 can be divided by 866.

Going ahead to step 1:
If we divide 2 by 866, we get 0 and a remainder of 2.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 2, we get 2.
Append the next digit (1) from the dividend to 2 and continue with: 21 / 866

Moving on to step 2:
If we divide 21 by 866, we get 0 and a remainder of 21.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 21 leaves us with 21.
Bring next digit (5) of the dividend behind the 21 and repeat the process: 215 / 866

On to step 3:
If we divide 215 by 866, we get 0 and a remainder of 215.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 215 leaves us with 215.
Bring next digit (7) of the dividend behind the 215 and repeat the process: 2157 / 866

On to step 4:
866 goes into 2157 2 times with a remainder of 425.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
Subtracting 1732 from 2157 leaves us with 425.
Fetch the next digit (0) from the dividend, attach it to 425 and continue: 4250 / 866

Advancing to step 5:
866 goes into 4250 4 times with a remainder of 786.
Use 4 as the next digit of our solution. 
Result so far: 24.0
Subtract 3464 from 4250 to get 786.
Append the next digit (5) from the dividend to 786 and continue with: 7865 / 866

Going ahead to step 6:
866 can be fit into 7865 9 times, resulting in a remainder of 71.
The next digit of our result is 9. 
Result so far: 249.0
The remainder is 71 after subtracting 7794 from 7865.
Include the next digit (4) from the dividend after 71, then repeat: 714 / 866

On to step 7:
If we divide 714 by 866, we get 0 and a remainder of 714.
The next digit of our result is 0. 
Result so far: 2490.0
Deduct 0 from 714 and we're left with 714.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7140, and continue the process.

Step 8:
866 goes into 7140 8 times with a remainder of 212.
The number 8 becomes the next digit in our result. 
Result so far: 2490.8
The remainder is 212 after subtracting 6928 from 7140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2120, and continue the process.

Let's proceed to step 9:
If we divide 2120 by 866, we get 2 and a remainder of 388.
The number 2 becomes the next digit in our result. 
Result so far: 2490.82
Subtracting 1732 from 2120 leaves us with 388.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3880, and continue the process.

Let's proceed to step 10:
866 goes into 3880 4 times with a remainder of 416.
The number 4 becomes the next digit in our result. 
Result so far: 2490.824
If we take 3464 away from 3880, we end up with 416.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4160, and continue the process.

On to step 11:
The number 866 fits into 4160 4 times, leaving a remainder of 696.
The next digit of our result is 4. 
Result so far: 2490.8244
Deduct 3464 from 4160 and we're left with 696.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6960, and continue the process.

Our division results in 2490.8244 with a remaining 0.00696.